I'm thinking,a 12" steel leader and use your drag.Don't fight it hard.You'll get it in. Many people have fished for bass with less than you have, and still brought it in.Patience is what you'll need. Good luck.
Oh by the way my late grandma on deer lake caught a 45" musky on 8lb mono years ago with a spin cast reel. Not recommended ,but she got it in with a little help.